JSFiddle - React, Tailwind, and code Playground

HTML

<div class='border'>
    <table class="row1">
        <tbody>
            <tr class="header">
                <th>1</th>
                <th>2</th>
                <th>3</th>
                <th>4</th>
                <th>5</th>
            </tr>
            <tr class="list">
                <td>1</td>
                <td>2</td>
                <td>3</td>
                <td>4</td>
                <td>5</td>
            </tr>
        </tbody>
    </table>
</div>

CSS

th, td {
    padding: 10px;
}
tr.list:hover  {
    background-color: #666;
}